Thermal conductivity of R32 and its mixture with R134a |
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Authors: | S. T. Ro J. Y. Kim D. S. Kim |
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Affiliation: | (1) Department of Mechanical Engineering, Seoul National University, 151-742 Seoul, South Korea |
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Abstract: | The liquid thermal conductivity of R32 (CH2F2) and R134a (CF3CH2F) was measured in the range from 223 to 323 K and from 2 to 20 MPa by the transient hot-wire method. The thermal conductivity of the R32+R134a mixture was also measured in the same range by varying the mass fraction of R32. The measured data are analyzed to obtain a correlation in terms of temperature, pressure and composition of the mixture. The uncertainty of our measurements is estimated to be within ±2%.Paper presented at the Twelfth Symposium on Thermophysical Properties, June 19–24, 1994, Boulder, Colorado, U.S.A. |
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Keywords: | R134a, R32 R32+R134a mixture thermal conductivity transient hot-wire method |
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